Samuel t



(No Model.)

,S. T. RUSSELL.

PUMP.

N0. 403,962. Patented May 28, 1889.

UNITED STATES PATENT EEICE.

SAMUEL T. RUSSELL, OF SPRINGFIELD, OHIO.

SPECIFICATION forming part of Letters Patent No. 403,962, dated May 28,1889.

Application filed November 30, 1887. Serial No. 256,675. (No model.)

.To all whom t may concern,.-

Be it known that I, SAMUEL T. RUSSELL, a citizen of the United States,residin gin Springiield, in the county of Clark and State of Ohio, haveinvented a new and useful Improvement in Pumps, of which the followingis a specication.

My invention relates to improvements in pumps, and is applicable to theclass knownas force or lift pumps, which are usually constructed ofmetal.

My invention relates to means for inserting and securing thelining-cylinder within which the piston and valves of the pump areoperated, and tor other devices applied and used in combination, as willbe hereinafter fully described in the specification, and moreparticularly pointed out in the claims.

Figure l is a vertical section of the barrel and operative parts ot apump having my improvements embodied therein. Fig. 2 is a top view otthe pump-barrel, with the pistonrod, discharge-pipe, and brace-rod shownin cross-section. Fig. 3 is a cross-section of the pump-barrel near itslower end, and shows the centering-cleats in the bottom and the liningcylinder or valve chamber resting thereon.

rThe barrelAis cast inthe usual cylindrical form, with a right-angledextension at the top for attaching the discharge-pipe H. The top end ofthe barrel is shouldered to receive a loose non-elastic ring, c, whichis seated therein, sufficient space being left between the inner wall ofthis ring and the piston B to receive a leather gasket, f, of circularform, which extends also over the top of the ring and barrel under thecap C, which latter is held tightly thereon by bolts and nuts. Theiiange which forms the shoulder and seat for the loose ring c proj ectsinward from the wall of barrel A nearly to the line of cylinder orvalve-chamber b, allowing the latter, however, to be readily droppeddown through it into the barrel.

The object in fitting the loose ring c into the top of the barrel on theliange or shoulder is to bridge over the space between the latter andthe piston B, which is required to form a seatfor the leather gasket f,and also by means of the removable ring c to provide for the more readyremoval of the operati ve parts of the pump in making repairs withoutthe necessity ot' withdrawing it from the well. Below the flange onwhich the loose ring c rests is another flange, a, which projectsinwardly far enough to forni a vacuum-chamber, c, encircling thelining-cylinder D inside the barrel. This vacuum-chamber extends fromflange a to the lower end of the barrel, opening into the cavity underthe cylinder where the induction-pipe enters the barrel. In the lowerend ofthe barrel A are the three radial equidistant cleats d d d. Theseextend from the inner verticaluwall of the barrel onto the bottom towardthe opening G. They are each about one-half inch thick, and their topsurfaces incline inward and downward, so as to cause the lining-cylinderto be adj usted centrally in the barrel at the lower end as it restsupon them, lea-ving openings between the cleats under the end of thecylinder into the vacuum-chamber c. The lining-cylinder b is of brass orcopper tubing, and is dropped into the barrel A until it rests on cleatsd d d at the bottom.

The piston B is a closed cylinder of tubing with openings in the lowerend. It is about one-half area of cylinder Z), and is mounted upon therod I), which latter extends through it and has a large valve, F, on thelower end, iitting the chamber of cylinder Z1. A fixed valve, E, in thebottom of cylinder Z) rests on cleats (l (l d. This is provided with theusual bail used upon the iiXed valves in wooden pumps for convenience inremoving it. The leather gasket f is pressed. into shape beforeapplying' it, and forms a vertical packing collar or ring around thepiston l, between it and the loose ring c, while its upper horizontaliiange extends outward over the ring c and the end ot' the barrel A,thus constituting a packing between the piston l and the ring c, betweenthe ring c and the cap (l, and also between the latter and the top endof the barrel A.

I am aware that an inclined packing has been used, it having been forcedor wedged in around the piston-cylinder by means of a cupped nut. Thismode ot packing is scriously objectionable. Then new the action of thewater on 1he leather swells the latter IOO and causes thepiston-cylinder to stick fast in the packing, and the cupped nut must beunscrewed and readj usted a number of times before it can be operatedwith ease. Besides 5 this, when the packing becomes Worn and the cuppednut tightened down, the latter not unfrequently. abrades the Wall of thepistoncylinder. In my improved form of packing no attention is requiredto read just the clamp- 1o ing devices, and no danger of contact of themetal parts can happen however much it may be Worn.

I claim as my inventionl. In a force-pump, a barrel having twoinwardly-projecting iian ges at its upper end and radial self-centeringcleats in its bottom end adapted to center and support a liningeylinderand also to support a removablev valve, in combination with saidlining-cylineo der and removable valve, a piston, a rod, D, a valve, F,a non-elastic removable ring seated on the uppermost of the iianges atthe upper extremity of the barrel, a gasket formed to embrace the innerand upper sides of said ring, and means 'for securing said gasket. in

position.

2. In a force-pump, a piston anda barrel having a flange at its upperextremity extending toward but not into contact with said 3o piston, incombination with a non-elastic ring removably7 seated on said flange, agasket conforming in shape to the upper and inner sides of said ring,and having its skirt of substantially the same length as the thicknessof said ring, and adapted to be pressed into contact With thepiston-cylinder by the Water in the barrel, and its top portionextending over upon the top of the barrel, a cap resting on said topportion of the gasket and having its outer edge substantially flush Withthe outer edge of said top portion, and means for securing said cap inposition.

3. In a force-pump, a piston, a valve, F, a rod, D, a barrel formed Witha flange at its top extending toward but not into contact with saidpiston, and also With 'radial selfeentering cleats in its lowerextremity adapted to serve both to center and support a liningcylinderinserted Within said barrel and also to support a removable valve, andthe said lining-cylinder andremovable valve, in combination With anon-elastic ring removably seated on the iiange at the top of thebarrel, a gasket conforming inrshape to the upper and inner sides ofsaid ring, and having its skirt of substantially the same leng'tlr asthe thickness of said ring, and adapted to be pressed into contact withthe piston by the Water in the barrel, a cap adapted to rest on theupper or Horizontal portion of said gasket and having its outer edgesubstantially vflush with the outer edge thereof, and means for securingsaid cap in position.

SAMUEL T. RUSSELL.

